Helps dissolve pure struvite stones and helps prevent calcium oxalate stones

Lowers the risk of crystal formation using RSS methodology for bladder health

Supports urinary health with an exclusive S/O Index, and creates an environment unfavorable to crystal formation in the bladder

Helps prevent struvite stones from reoccurring

When your cat has urinary issues, easing their discomfort requires special care. But with the help of your veterinarian and Royal Canin, there’s not just hope—there can be a true difference.

This veterinary-exclusive morsels in gravy wet cat food was developed to nutritionally support your adult cat’s urinary tract and bladder health. It increases the amount of urine your cat produces to help dilute excess minerals that can cause crystals and stones. Relative Super Saturation (RSS) methodology is used to help lower ion concentration in urine, which contributes to stone formation. This formula promotes a urinary environment unfavorable to the formation of both struvite and calcium oxalate crystals. And this specialized nutrition, with a reduced level of magnesium, helps dissolve pure struvite stones and prevent struvite stones from forming. Lower urinary tract issues may be a recurring concern for some cats. Talk to your veterinarian about keeping your cat on this urinary cat food for long-term urinary support. And ask them about the right Royal Canin dry cat food and treats to complement your cat’s diet.

Water sufficient for processing, pork by-products, chicken liver, chicken by-products, wheat gluten, wheat flour, natural flavors, modified corn starch, pork plasma, powdered cellulose, vegetable oil, salt, fish oil, calcium sulfate, potassium chloride, guar gum, sodium tripolyphosphate, taurine, sodium bisulfate, DL-methionine, vitamins [DL-alpha tocopherol acetate (source of vitamin E), thiamine mononitrate (vitamin B1), niacin supplement, biotin, D-calcium pantothenate, folic acid, pyridoxine hydrochloride (vitamin B6), riboflavin supplement, vitamin B12 supplement, vitamin D3 supplement], choline chloride, trace minerals [zinc proteinate, zinc oxide, ferrous sulfate, copper sulfate, manganous oxide, sodium selenite, calcium iodate], marigold extract (Tagetes erecta L.).

Calorie Content

This diet contains 765 kcal ME/kg; 65 kcal ME/can on an as fed basis (calculated).

Nutrient Amount
Crude Protein (min)8.5%
Crude Fat (min)2.0%
Crude Fiber (max)1.75%
Moisture (max)82.5%.

Wet Feeding

Cat Weight Low Activity Medium Activity High Activity
4.4 lb (2 kg) 1 1/4 cans (115 g) 1 3/4 cans (140 g) 2 cans (170 g)
6.6 lb (3 kg) 1 3/4 cans (150 g) 2 1/4 cans (190 g) 2 3/4 cans (225 g)
8.8 lb (4 kg) 2 1/4 cans (185 g) 2 3/4 cans (235 g) 3 1/4 cans (280 g)
11 lb (5 kg) 2 1/2 cans (220 g) 3 1/4 cans (275 g) 3 3/4 cans (325 g)
13.2 lb (6 kg) 3 cans (250 g) 3 3/4 cans (310 g) 4 1/4 cans (370 g)

Mixed Feeding

Cat Weight Cans/ Day Low Activity Medium Activity High Activity
4.4 lb (2 kg) 1/2 1/4 cup (16 g) 1/4 cup (24 g) 3/8 cup (30 g)
6.6 lb (3 kg) 1 1/8 cup (15 g) 1/4 cup (26 g) 3/8 cup (35 g)
8.8 lb (4 kg) 1 1/4 cup (23 g) 3/8 cup (37 g) 1/2 cup (48 g)
11 lb (5 kg) 1 3/8 cup (31 g) 1/2 cup (47 g) 3/4 cup (60 g)
13.2 lb (6 kg) 1 3/8 cup (37 g) 5/8 cup (57 g) 7/8 cup (72 g)
Urinary SO Morsels in Gravy Canned Cat Food

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Customer reviews

30 Jun 2021

Cat loves it

My cat loves this food, but as another reviewer said. I also wish the cans were bigger for the price you pay. I buy this food because the rescue I adopted him from told me it was recommended by his vet. I have only had him for a few weeks now, I am hoping that this food really does help combat his urinary crystal issues. I believe it is working because he is going to the bathroom regularly with no issues.
22 Apr 2021

Great food/Need larger cans/Can't fully recommend.

Was recommended this food for my 2 yo male cat who had 2 bouts of crystal caused blocking, which ultimately resulted in us having to do the perineal urethrostomy (which was a success!), and my cat has loved the food and more importantly, it (along w/ the other things we've done) it's helped get him back to normal. My only/main complaint about this food is that the MORSELS version only available in this smaller 3oz can, whereas the Loaf version (which my cat does not like) is available in a 5.8oz can. WHY? This is causing me to pay the same price for half of the food. I hope Royal Canin will do something about this and offer the MORSELS version in a 5.8oz can. Until they do, I CANNOT fully recommend this as it is FAR too expensive and uneconomical for long term use.
06 Apr 2021

My cats love it

My cat started to develop crystal...4 trips to the vet...different brands until my vet prescribed Royal. I was very skeptical at the beginning. Because my cats ate very pickie....but they love it ..they love the treats too...couldn't be happier
Tommy d
11 Feb 2021

Life saver

We were having bad issues with Enzo's bladder ,until the Vet put him on Royal Canin so ,its been 4 years and my little /man is healthy and happy ,Thanks to Royal Canin and my Vet ,ya saved my cats Life
31 Oct 2019

It has great edible chunks in it that my cats like

My cats really like this. They really like it but get a little tired of it after a couple weeks, but when I stop feeding it to them and give them another kind for a few days, then return to feeding this to them, they love it again!
31 Oct 2019

Life Saver

10 years ago my maine coon, Kona was unable to urinate Our vet operated on Kona who had crystals in his urine. The operation was a success, but in order for Kona to continue to live a productive life he would need a special diet: Royal Canin Urinary SO. 10 years later Kona is still going strong and Royal Canin Urinary SO is ALL he eats. Thank you Royal Canin
30 Oct 2019

My Cats Love It, And It Smells Great

My cat that has urinary issues has been prescribed this food for years, and loves it. The cans are easy to open, the food scoops cleanly out of the can, and he never leaves any leftovers.
30 Oct 2019

The perfect fit!

My Devon Rex was having problems with urinary crystals and infections. Our Vet suggested that we should try RC Urinary SO. What a game changer, he hasn't had a single UTI or problems with crystals since starting this diet more than 2 years ago.
30 Oct 2019

Saved our Kitty's life ! Avoided surgery!

Amazing product. Truly did save our kittys life, and avoided a costly surgery. Thank you!
30 Oct 2019

My cat favorite’s flavor!

Rocco has UTI and he loves this flavor. He tried different brands but he prefer Royal.